Repeating firearm



Jan. 18, 1938. H. F. MossBERG REPEATING FIREARM Filed Oct. l, 1935 3 Sheets-Sheet 3 Patented Jan. 18, 1938 UNITED STATESy 2,105,752 REPEATING FIREARM Harold F. Mossberg,.New Haven, Conn., assignor to O. F. Mossbergt` Sons IncorporatedLNew Haven, Conn., a' corporation of Connecticut Application October 1,'

: Claims.

invention vrelates to' improvements inA repeatingrearms, and more particularly'to im# provements'in cartridge-elevating mechanism to successively bringthe cartridges into proper posi.:

5v, ti'onfor'insertion inthe cartridge-'chamber'of a'V repeating firearm.

One object of' thisA invention is to provide an improved', positive-acting cartridge-elevating' mechanism for a'repeating firearm.

an improved' positive-acting cartridge-elevating mechanism formed of simple elements readily manufactured and readily assembled to produce a durable efiicient construction at minimum cost.

i5., WithA the' aboveandy other objects in view, this invention' includes 'all' improvements over'the prior' art which'are disclosed'vin this application.

ln'the accompanying" drawings, in which one wayof 'carrying 'out the invention isY shown for o illustrative purposes:

of Qa" repeating firearm with the stock omittedand illl'i'stratirigv one embodiment of" the presentn-l ventionj .7 Fig.v2.is"a bottom plan view of Fig. 1;

u 3' is la longitudinal central vertical section' of] the construction shown in'Fig. l1 wlththe partsfin' the positions they assume when the the bolt at 'the startofits forward travel and the' elevator about to effect the lifting of the cartridee .Y Y

Fig'. y51s a view similar toFig. 3, but. showing the bolt about midway of its. forward traveland the cartridge in line with the cartridge-chamber; Fig. 6 is a transverse` vertical sectionalv view onV line tij-6 of Fig. 3;

4@ Fig. 'Tis a transverse-vertical sectionalfviewA pig-11 is a perspective view of the cartridge- 50; elevator lever; and

.Flg'.-v12is a perspective view of the'leaf-spring` for acting on thecartridge-,elevator lever. y

r In'- the description and claims, the various parts are identifled byA specic names for con- 553 venience, but theyv are intended to be as generic Another object of this invention is 'to provide' Fig. l is a side'elevation of the rear portieri 1935, serial No. 43,009'

(o1. i2- 1n in theirapplication as the'pri'or art, will permit.`

Referring to the drawings, the'barrel I0 has a cartridge-chamber' II andthe rear end of `.the barrel I0 is connected to the receiver I2. Longitudinally sli-dable inthe receiver I2 isa breechbolt I3` consisting of rear and forward parts I4 and I5 swiveled together in a well-known manner, with their .line of'.sepa1ation indicated atl I6. The'vbolt-handle I7 is rigidly secured' to the'. rear part I4 of the breech-bolt, and the ring pin I8is" mounted' to slide inthe breech# bolt and to have itscocking-shoulder I9 engageable with the seareshould'er 2@ of theV sear 2'I. The sear is actuatable by the trigger 22. g l

The forward part I5 of the breech-bolt at its extreme forward face, 23 is provided with a guide-and-retainer channel 24 (Fig. 8) :formed by two spaced-apart undercut grooves 2,5; and 26 which form the lower part of the guide-and'- retainer channel, and two springeextractorrnlgers 2l and 28 which respectively providefupper channel portions 29 and .33." The curved top'- wall 31 may serve as a Vlirnit-shkmlder toglimit the upward travel of the' rim of a cartridge.' 'A tubular' magazine 32. secured adjacent the forwardend of the'gun (not shown) extendsrearwardly and is provided 'with the curved 'portion 33. Owing to the length of the tubular magazine 32', the'portion 33ijthereof is capable of bein'gj' in place with the integral,- bent, positioning-lug d' thereof located between the oppositesidemembers` ilv and 42" ofthe' bracket 34.' Pivotd' to the bracket at 43y is a cartridge-elevator lever 44 having a projection 45. Integrally for-med with the bracket 34 is'an ejector 46 having, an ejectornose 41 vadapted to travel' inthe slot 48l of. the breech-bolt portion I5. The bracket 34` has the parts 4I, 42', and 46`a11 'formed as oneintegral member. A Y

When the breech-boltis in the closed position shown in Figi 3, the lower surfacerQ of the for-Y ward'end of thev breech-'bolt presses the portion 5Il'of the tubular magazine 32to spring the latter down somewhat; kwhich permits the follower 5I which is pressed by a spring (not shown) to force the rim 52 of a cartridge'past the limit-shoulder 54", andas the breach-bolt moves rearwardly` from'its closed position shownin Fig. 3, the cartridge 53 is pushed rearwardly by the follower 5I and rocks around toward horizontal position.

As the surface 139 of the breech-bolt passes along the sloping surfaces 55 of the flexible tube 32, the latter is permitted to spring upwardly and force the rim 52 of the cartridge 53 up into the lower portion of the rim guide-and-retainer channel 24 and also close 01T passage of the next following cartridge, so that the latter will be stopped by the limit-shoulder 54. Continued movement of the breech-bolt to the rear now pulls the rim 52 and the cartridge 53 toward the rear to approximately the position shown in Fig. 4, at the same time extracting any fired shell by means of the extractor-fingers 2l, 28 and ejecting it by the ejector-nose 4l, that may have been in the cartridge-chamber. The cartridge 53 in its rearward movement engages the upper end 55 of the cartridge-elevator lever 44 and swings the latter rearwardly until the projection 45 passes to the right of the line of thrust of spring 39 through the pivot 43, whereupon the action of the spring 39 against the projection l5 swings the lever 44 downwardly to almost the position shown in Fig. 4. Further movement of the cartridge 53 rearward forces the lever fully to the position shown in Fig. 4 with the spring 39 pressing against the portion 51 and tending to swing the lever 44 upwardly and forwardly, and holding the same in engagement with the rim 52 and shell-body of the cartridge 53.

As the breech-bolt is moved forwardly toward the closed position, the rim 52 of the cartridge 53 presses against the rear edge of the portion 56 of the cartridge-elevator lever G4, thus compelling the lever li tc swing upwardly and forwardly about its pivot 53, thus forcing the rim 52 of the cartridge 53 to slide upwardly in the rim guide-and-retainer channel 24 until the cartridge is properly positioned, as shown in Fig. 5, for entry into the cartridge-chamber.

The above-described sequence of operations takes place repeatedly during the repeated firing and actuation of the breech-bolt of the firearm.

While the upturn-and-pullback type of repeating rearm has been used to illustrate the invention in the drawings, the invention can also be employed on other types of repeating firearms employing a breech-bolt, such as pump-action and automatic repeating firearms.

'I'he invention may be carried out in other specific ways than that herein set forth without departing from the spirit and essential characteristics of the invention, and the present embodiment is therefore to be considered in al1 respects as illustrative and not restrictive, and all changes coming within the meaning and equivalency range of the appended claims are intended to be embraced therein.

I claim:

l. A repeating iirearm including: a receiver; a barrel at the forward end of said receiver and having a cartridge-chamber; a breech-bolt having cartridge-guide-and-retainer means and movable in the receiver to closed and retracted positions; means for locating a cartridge below the axis of the cartridge-chamber and with its head adjacent the cartridge-guide-and-retainer means of said breech-bolt when the breech-bolt is in retracted position; and a cartridge-elevator lever pivoted below and forward of the head of such a positioned cartridge when the breech-bolt is in retracted position, with said lever extending upward and rearward from said pivot and in engagement with such a positioned cartridge, said pivoted lever being so constructed as to be forced by direct positive engagement of the cartridge therewith, to swing the lever upward and forward and raise the cartridge along said cartridgeguide-and-retainer means into proper position for insertion in the cartridge-chamber when said breech-bolt is moved from retracted to closed position.

2. A repeating firearm including: a receiver; a barrel at the forward end of said receiver and having a cartridge-chamber; a breech-bolt having cartridge-guide-and-retainer means and movable in the receiver to closed and retracted positions; means for locating a cartridge below the axis of the cartridge-chamber and with its head adjacent the cartridge-guide-and-retainer means of said breech-bolt when the breech-bolt is in retracted position; a cartridge-elevator lever pivoted below and forward of the head of such a positioned cartridge when the breech-bolt is in retracted position, with said lever extending upward and rearward from said pivot and in engagement with such a positioned cartridge, said pivoted lever being so constructed as to be forced by direct positive engagement of the cartridge therewith, to swing the lever'upward and forward and raise such a positioned cartridge along said cartridge-guide-and-retainer means into proper position for insertion in the cartridge-chamber when said breech-bolt is moved from retracted to closed position; and a spring to urge said lever upward and forward to engage such a positioned.

cartridge.

3. A repeating firearm including: a receiver; a barrel at the forward end of said receiver and having a cartridge-chamber; a breech-bolt having cartridge-guide-and-retainer means and movable in the receiver to closed and retracted positions; means for locating a cartridge below the axis of the cartridge-chamber and with its head adjacent the cartridge-guide-and-retainer means of said breech-bolt when the breech-bolt is in retracted position; and a cartridge-elevator lever pivoted below and forward of the head of such a positioned cartridge when the breech-bolt is in retracted position, with said lever extending upward and rearward from said pivot and in engagement with the rim and shell-body of such a positioned cartridge, said pivoted lever being so constructed as to be forced by direct positive engagement of the cartridge therewith, to swing the lever upward and forward and raise the cartridge along said cartridge-guide-and-retainer means into proper position for insertion in the cartridge-chamber when said breech-bolt is moved from retracted to closed position.

4. A repeating firearm including: a receiver; a barrel at the forward end of said receiver and having a cartridge-chamber; a breech-bolt having an upwardly-extending cartridge-guide-andretainer channel and movable inthe receiver to closed and retracted positions; means for locating a cartridge below the axis of the cartridgechamber and with its head in the lower portion of said cartridge-guide-and-retainer channel when the breech-bolt is in retracted position; and a cartridge-elevator lever pivoted below and forward of the head of such a positioned cartridge when the breech-bolt is in retracted position, with said lever extending upward and rearward from said pivot and in engagement with such a positioned cartridge, said pivoted lever being so constructed as to be forced by direct positive engagement of the cartridge therewith, to swing the lever upward and forward and Araise the car- 75 tridge along said channel into proper position for insertion in the cartridge-chamber when said breech-bolt is moved from retracted to closed position.

5. A repeating firearm including: a receiver; a barrel at the forward end of said receiver and having a cartridge-chamber; a breech-bolt having an upwardly extending cartridge-gudeand retainer channel and movable in the receiver to closed and retracted positions; means for locating a cartridge below the axis of the cartridgechamber and with its head in the lower portion of said cartridge-guide-and-retainer channel when the breech-bolt is in retracted position; and

a cartridge-elevator lever pivoted below and forward of the head of such a positioned cartridge when the breech-bolt is in retracted position, with said lever extending upward and rearward from said pivot and in engagement with the rim and shell-body of such a positioned cartridge, the part of said lever engaging the cartridge being shaped to be forced by direct engagement of the cartridge therewith, to swing the lever upward and forward and raise the cartridge along said channel into proper position for insertion in the cartridge-chamber when said breech-bolt is moved from retracted to closed position.

HAROLD F. MOSSBERG. 

